transformer-less 2 kw non isolated400 vdc/230 vac single stage micro inverter
TRANSCRIPT
Powering the Software Defined Network
Transformer-less 2 kW Non Isolated400 VDC/230 VAC Single Stage
Micro Inverter
Intelec 2016O. BOMBOIR, CE+T Power
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Why such a small inverter?
• Google & IEEE ‘Little Box Challenge’
• Decentralized production requires compact
static converters
• We’ve been shrinking inverters since 30 years
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Mechanical Electronics
Software
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Forced cooling M e c h a n i c a l
Pc = As(Ts-Ta)Cc
Pr = As(T4s-T4
a)Cr
=> 99,5% efficiency required!
Forced Cooling Mandatory
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Heatsink & Thermal M e c h a n i c a l
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Capa positioning M e c h a n i c a l
Capa used as heatsink’s fins !
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Sandwich layout M e c h a n i c a l
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GaN controlers E l e c t r o n i c s
GaN
IGBT
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MLCC Vs Electrolytics Capa E l e c t r o n i c s
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Topology E l e c t r o n i c s
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Magnetics sizing E l e c t r o n i c s
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Zero Volt Switching S o ft w a r e
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Active Filtering S o ft w a r e
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E l e c t r o n i c s
Parameter Realised Requested
Maximum Power Tested 2062 VA 2000VA
Volume of enclosure 225 cm³ 655 cm³
Power density 8850 W/litre 3050W/litre
DC voltage range 300 to 450VDC 399.5 V
AC voltage (RMS) output 240 Vac 240V +/- 12Vac
Efficiency (CEC Method) 95.4 % Min 95 %
Max Temp of Enclosure 48 °C 60 °CAmbient T° of test 29 °C 30 °CEMI compliance FCC Part 15 B FCC Part 15 B
S o ft w a r eM e c h a n i c a l
Powering the Software Defined Network
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Bi-directionality + µGrid + Virtualization=
Power Virtualization
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Server rack
Backup rack
Data flow
AC Power
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Server rack
Backup rack
Data flow
AC Power
DC Power flow
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THANK YOU